.

go/neo/mastered.go

@@ -227,7 +227,7 @@ func (node *_MasteredNode) talkMaster1(ctx, ctxPreTalkM context.Context, f func(
 		node.updateOperational(func() {
 			err = node.updateNodeTab(ctx, &mnt) // the only err is cmdShutdown
 			node.state.PartTab = pt
-			if err != nil {
+			if err == nil {
 				// keep mlink=nil on shutdown so that
 				// .operational does not change to y.
 				node.mlink = mlink
@@ -351,7 +351,7 @@ func (node *_MasteredNode) recvδstate(ctx context.Context, msg proto.Msg) (δpt
 }
 
 // updateOperational calls δf under .opMu and updates .operational from current state.
-// it also notifies those who was waiting for it if operational state becomes ready.
+// After .opMu unlock it also notifies those who was waiting for .operational to become y.
 func (node *_MasteredNode) updateOperational(δf func()) {
 	var opready chan struct{}
 
@@ -362,9 +362,11 @@ func (node *_MasteredNode) updateOperational(δf func()) {
 
 		operational := (node.mlink != nil)  &&  node.state.IsOperational()
 
-		//fmt.Printf("\nupdateOperatinal: %v\n", operational)
-		//fmt.Println(node.partTab)
-		//fmt.Println(node.nodeTab)
+		fmt.Printf("\nupdateOperatinal: %v\n", operational)
+		fmt.Printf("  mlink:   %s\n", node.mlink)
+		fmt.Printf("  state:   %s\n", node.state.Code)
+		fmt.Printf("  partTab:\n%s", node.state.PartTab)
+		fmt.Printf("  nodeTab:\n%s", node.state.NodeTab)
 
 		if operational != node.operational {
 			node.operational = operational